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钒(V)-PAR络合物在NaClO_3存在下产生一灵敏的极谱催化波.峰电位为-0.1V(SCE).该催化波具有吸附和动力波的特征.它的总电极反应可表示为: [VO_2、-HPAR]+2H~+ +e→[VO-HPAR]~++H_2O ↑ NaClO_3 | 在1×10~(-4)MPAR-0.8MNaClO_3-0.004MH_2SO_4(pH2.1±0.1)支持电解质中,催化波波高与1ppb—400ppb的钒(Ⅴ)有线性关系.应用该体系催化波测定了地质化探试样中的钒.
The vanadium (V) -PAR complex produces a sensitive polarographic catalytic wave in the presence of NaClO_3, with a peak potential of -0.1 V (SCE). This catalytic wave has the characteristics of adsorption and kinetic waves and its total electrode response can be expressed as Is as follows: [VO_2, -HPAR] + 2H ~ + + e → [VO-HPAR] ~ ++ H_2O ↑ NaClO_3 | In 1 × 10 -4 MPAR-0.8M NaClO_3-0.004MH_2SO_4 (pH 2.1 ± 0.1) In the supporting electrolyte, the linear relationship between the wave height and 1ppb-400ppb vanadium (V) is linear.Using this system, the vanadium in geochemical exploration samples was determined by catalytic wave.